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Laser from Optically Pumped Quantum Dot CdSe/ZnS in a Colloidal Liquid

Prasad, Saradh ; Ibnaouf, K. H. ; AlSalhi, M. S. ; Alameh, Kamal ; Devaraj, D. ; Hamdan, A. ; Karim, M. R. ; Zaman, M. B. ; Masilamani, V.

Journal of nanoscience and nanotechnology, 2015-09, Vol.15 (9), p.6710-6713

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Título:
Laser from Optically Pumped Quantum Dot CdSe/ZnS in a Colloidal Liquid
Autor: Prasad, Saradh ; Ibnaouf, K. H. ; AlSalhi, M. S. ; Alameh, Kamal ; Devaraj, D. ; Hamdan, A. ; Karim, M. R. ; Zaman, M. B. ; Masilamani, V.
Assuntos: Cadmium selenides ; Colloids ; Focusing ; Intermetallics ; Lasers ; Liquids ; Qunatum dots ; Spectra ; Zinc sulfides
É parte de: Journal of nanoscience and nanotechnology, 2015-09, Vol.15 (9), p.6710-6713
Notas: 1533-4880(20150901)15:9L.6710;1-
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: In this study, we had investigated the amplified spontaneous emission (ASE) characteristics of CdSe/ZnS quantum dot (QDs) in a colloidal liquid. A third harmonic of Nd:YAG laser (355 nm) was used to produce laser-induced fluorescence (LIF) at 605 nm with a spectral width of 0 nm [full width at half maximum (FWHM)]. When the pump power and focusing were carefully optimized, an ASE at 610 nm with a spectral width of Δλ = 8 nm (FWHM) could be obtained. The beam was directional with a divergence of 10 milli radians (mrad); but the conversion efficiency was about 0.05%.
Editor: 26650 The Old Road, Suite 208, Valencia, California 91381-0751, USA: American Scientific Publishers
Idioma: Inglês

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